Bred
Vectors (BVs) are computed as follows:
1)Start with an arbitrary initial perturbation of size A defined with
an
arbitrary norm. This initialization step is executed only once. The size is
essentially
the only tunable parameter of breeding.
2)
Add the perturbation to the basic solution, integrate the perturbed initial
condition
with the nonlinear model, and subtract the original unperturbed
solution
from the perturbed nonlinear integration:
3)
Divide the perturbation by the measured amplification factor so that
its
size remains equal to A: